DAC, VOBA, DSI, and DFEL (VOBA) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Amortization:
Amortization, excluding unlocking	$ 13	$ 15
UL and Other [Member]
Changes in VOBA [Roll Forward]
Balance as of beginning-of-year	454	499	$ 499
Deferrals			2
Amortization:
Amortization, excluding unlocking	(11)		(47)
Balance as of end-of-year	443		454
Traditional Life [Member]
Changes in VOBA [Roll Forward]
Balance as of beginning-of-year	50	59	59
Amortization:
Amortization, excluding unlocking	(2)		(9)
Balance as of end-of-year	48		50
Fixed Annuities [Member]
Changes in VOBA [Roll Forward]
Balance as of beginning-of-year	17	$ 20	20
Deferrals	1
Amortization:
Amortization, excluding unlocking	(1)		(3)
Balance as of end-of-year	$ 17		$ 17